Martin, interesting subject, here in Kwazulu Natal one doesn't often see these. What I have noticed though are plaques people are putting up on the dolosses on the harbour wall, if I go there this afternoon I'll take a cellpic and share.
On another note: how are you going to publish the work in book form in SA? I've researched this for almost two years now and I can't find an avenue that makes any financial sense.